Carbureting-lamp.



No. 707,190. Patented Aug'. I9, |902.

\ G. WEDDERBURN.

CARBURETING LAMP.

(Application Bled Nov, 8. 1.901.)

willful/1111171111111 29m y @mmm g@ i l Y rtozmsd 3o the globe and continues to burn.

UNITED STATES lnTnNTl OFFICE.

GEORGE WEDDERBURN, OF DUNN LORING,l VIRGINIA.

CARBU RETlNe-LAM P.

SPECIFIGTION formingpart of LettersPatentNo. 707,190, dated'ugust 19, 1902.

` Application iled November 8, 1901. Serial. No. -81,542. (No model.)

Virginia, have invented certain new and useful Improvements in'Lighting Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, lsuch as will enable others skilled in the art to lo which it appertains to make and use the same.

This inventionrel'ates to lighting devices, and although designedprimarily for streetlighting it is evident that the same may be used for house-lighting-and otherpurposes,

I5 and hence I do not wishY to be limited to any particular use of the invention The broad principle of the invention consists of a burnerso constructed as not to admit any air intothe interior ofnthechimney zo or globe, so that when heat is produced in the burner an exhaustion of the air is caused therein by virtue of the heat ascending through a flue communicating with the top ofthe globe or chimney, and to relieve this exhaustion air enters through perforations in the oil-receptacle or the inclosure for the wick and in its passage over the Wick is transformed into gas, which passes on up through the tube to relieve the pressure in The principle thus briefly outlined is capable of embodiment in a variety of forms, some only ofiv which I have chosen to herein illustrate; but

I do not intend to restrict myself to these par- 3 5 ticular'forms, which are given merely as illustrations of practical means for carrying out the invention,vwhich in its broad sensey comprehends the use of a vacuum for lifting the gas from the generator to the point of 4o ignition. i

added that my inventionivpernits of the production of a very bright light at a minimum cost and the structural embodiment of the invention entails but small cost, the device being simple in its nature, of few parts, and

5o those readily assembled and not liable to get out of order.

By my invention I am enabled to provide a cheaplight foruse in the country for lighting'the Astreets without the expense of the construction of a plant, the running of pipes for gas, orj the maintenance of such a plant, and the lights areportable, and hence can be placed where desired. f f

The invention in its preferable forms is clearlyillustrated in the accompanying drawings, which, with the numerals of reference lmarked thereon, form a part of this specification, and in which-- Figure 1 is an elevation. with portions broken away and parts in section showing the application of one form of the invention. Fig. 2 isfa vertical section, with parts in elevation, of another form of the invention. Fig. 3 is a detail in perspective showing the gauze cap on the upper end ofthe tube. Fig. 4 is a cross-section on the line 4 4 of Fig. I looking down.

Like numerals of reference indicate like parts throughout the several views.

Referringinow to the details of the drawings, 1 designates a lamp-post, and 2 a continuation 'thereof forming a base. Within this base isa box or receptacle 3, within which is disposed the cone-shaped wall 4, terminating inthe point 5. i

6 is a filling-tube or the like through which the loil may vbe admitted into the receptacle 3.

7 isa wick fitted'over the cone-shaped wall 4, as shown iny Fig. `l,"and over this wick and supported Vupon'ythe top of the receptacle 3 is a coveringS, having 'near its lower end the perforations9. This covering has a neck portion 9a, over which is fitted `the lower end of the tube 10, which extends upward through the post, as seen clearly in Fig. l.

. llj'is agauzecaponthe upper en dof ythe tube 10 for distributing the iiame.

12 is a support for a mantle 13 of any approved forms of construction, which mantle is disposed over the upper end of the tube'lO, as seen clearly in Fig. 4l.

I4 is a plate or disk secured. to the 1upper end of thelamp-post, as shown, and thisplate snugly embraces the tube 10, and upon its upper face it is provided with a recess or depression 14'", in which is disposed a rubber or analogous collar or packing 14, upon which rests the lower end of the half-globe 15, the construction being such as to prevent the outside air from entering the half-globe through its bottom portion.

1G is the upper half-globe, which rests upon the top of the lower half 15, and the iit between the two at their meeting-points is designed to be air-tight, so as to prevent the ingress of air at this point, and to insure this I provide a rubber or analogous collar or packing-ring 17, as seen in Fig. 1.

18 is a flue which is supported removably and adjustably in the upper half of the globe, as by the set-screw 18a. This flue extends down within the globe the required distance and maybe elevated when the mantle is to be inserted and afterward lowered and securely held in its proper position. Any suitable means may be provided for gaining access to the base 2.

In operation th'e gasolene is placed in the receptacle 3, and the wick being in place, as shown, so that its lower portion is immersed in the oil or gasolene, the air in passing in through the perforations 9, coming in contact with the wick and the oil therein, gas is generated, and the gas thus generated will be immediately sucked up through the tube lO and will pass through the wire-gauze cap Il in the form of gas, where it is ignited in any suitable way. I thus obtain a very bright and steady light, the gas being drawn up from the generator by means of the exhaustion of the air formed in the globe by the heat therein. The lamp is started in any suitable Way--for.instance, by dropping an ignited piece of sponge or any other absorbent material saturated with gasolene or other material into the top of the tube 18.

In Fig. 2 I have shown another arrangement for generating the gas. In this form there is located within the base 2 a box 19, having an opening 2O to receive the lower end of the gas-tube 2l, which receives the lower end'of the tube 10. 22 represents openings in the top of the box near one end for the ad mission of air, and near the other end of the said box or receptacle is an opening 28 to receive the lower end of the pipe 25, which within the box 19 has perforations 24, as shown. This tube 25 extends from the gasolene tank or receptacle W26, preferably located within the base, although it is evident that it may be located in any other desired position.

The operation is as follows: The fluid passes through the pipe 25 and its perforations 24E until the latter are closed by the fluid rising in the tank 19 to a sufcient height, and when the fluid in the said tank falls below the perforations fluid from the tank 26 will again flowinto the tank 19. The construction is such as to' give as much surface on the iiuid as possible, so that when the air is admitted through the perforations 22 in the top of the box it will pass over and through as much of the surface of the fluid as possible, and thus create the greatest amount of evaporation, and thus generate the gas, which passes up through the tubes 21 and 10 and through the wire-gauze 11, where it is burned Within the globe as before. In both instances when heat is produced in the burner an exhaustion is caused therein by virtue of the heat ascending through the tube or flue 18 and the air rushing through the perforations 9 in Fig. 1 to relieve the pressure caused by said exhaustion, and in its passage over the wick it is transformed into gas, and the pressure being relieved thereby as it enters the globe the gas will continue to burn with a bright and steady flame.

From the above it will be evident that I have devised a novel construction of lamp, and while the structural embodiment of the principle of the invention as herein disclosed is what I at the present time consider the preferable it is evident that the same is subject to changes, variations, and modifications without departing from the spirit of the invention or sacrificing any of its advantages, and I therefore do not wish to be restricted to the details herein illustrated, but reserve the right to make such changes, variations, and modifications as come properly within the scope of the protection prayed.

1. A lamp embodying a fluid-receptacle, a tube leading therefrom to the point of ignition, a globe closed at its lower end, a burner in said globe, and means for generating gas by the exhaustion of the air in the globe by the ignition of the burner and drawing the same upward from the generator to the point of ignition.

2: A lamp embodying a fluid-receptacle, a tube leading therefrom to the point of ignition, a globe inclosing the upper end of said tube and closed at all points except its upper end, a iiue leading from the upper portion of the globe, and means for generating gas by exhaustion created in ,the globe when the lamp is ignited.

ICO

IIO

3. Alamp embodying atiuid-receptacle bei low the point of ignition, a tube leading therefrom to the point of ignition, a globe inclosing the upper end of the said tube, means for creating an exhaustion in said globe when the lamp is ignited and for drawing the generated gas upward through said tube to the point of ignition within the globe.

et. A lamp comprising a Huid-receptacle located at a point below the point of ignition,

a globe, a tube leading from the said receptacle and terminating within said globe, and means for drawing air into said receptacle over the fluid therein and up through the said tube and into the globe upon the ignition of the lamp.

5. A lamp comprising a fluid-receptacle below the point of ignition, a globe above said receptacle, a tube leading from the receptacle to tho globo, means for admitting air to IZO .the receptacle over the surface of the-fluid In `testimony Whereof'I affix my signaturetherein to evaporate thelattenmeans for genin presence of twowitnesses. eratng gas by exhaustion created in the globe when the lampis ignited, a tube leading from GEORGE WEDDERBURN' 5 the top of the globe, and a mantle over the Witnesses:

upper end of the first-mentioned tube Within E. H. BOND,

the globe. Rom'. AITON.y 

